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Browsing by Subject "Subduction Zones"

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    Lawsonite Composition and Zoning as Related to Grain Color in Hand Sample
    (2024-09-25) Hudson, Erin
    This project focuses on lawsonite (CaAl2(Si2O7)(OH)2*H2O), a hydrous (about 11.5% H2O) silicate mineral that forms in high-pressure, low-temperature subduction zones, and how its ability to record elemental composition changes during subduction zone metamorphism is reflected in grain color variations in hand sample, with a focus on pink and white-blue lawsonite from Reed Station on the Tiburon Peninsula in the Franciscan Complex in California, U.S.A.